<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        .box {
            width: 100vw;
            height: 100vh;
            background: #000;


        }
        .box-header{
            width: 500px;
            height: 200px;

            background-color: rgba(89, 89, 89, 0.6);
            backdrop-filter: blur(30px);
            -webkit-backdrop-filter: blur(30px);
            border: 1px solid rgba(255, 255, 255, 0.18);
            box-shadow: rgba(14, 14, 14, 0.19) 0px 6px 15px 0px;
            -webkit-box-shadow: rgba(14, 14, 14, 0.19) 0px 6px 15px 0px;
            border-radius: 25px;
            -webkit-border-radius: 25px;
            color: rgb(128, 128, 128);
        }
    </style>
</head>

<body>
    <div class="box">
        <div class="box-header">
            
        </div>
    </div>
</body>

</html>